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Atara Biotherapeutics, Inc.

ATRA
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001604464

In the last 90 days, Atara Biotherapeutics, Inc. insiders filed 1 open-market purchase and 1 sale; 36 institutions reported holding it in 13F filings for Q2 2026, worth $51.3M in total; no superinvestor holds it.

13F holders, Q2 2023

Institutional positions in Atara Biotherapeutics, Inc. as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
118
−7 vs. Q1 2023
Shares held
90.5M
−12.2M (−11.9%) vs. Q1 2023
Total value
$145.8M
−$152.0M (−51.0%) vs. Q1 2023
New holders
22
36 more added
Sold out
29
42 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ATRA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 118 institutions
Q1 2021: 151 institutionsQ2 2021: 145 institutionsQ3 2021: 140 institutionsQ4 2021: 139 institutionsQ1 2022: 145 institutionsQ2 2022: 134 institutionsQ3 2022: 155 institutionsQ4 2022: 139 institutionsQ1 2023: 125 institutionsQ2 2023: 118 institutionsQ3 2023: 109 institutionsQ4 2023: 91 institutionsQ1 2024: 82 institutionsQ2 2024: 48 institutionsQ3 2024: 35 institutionsQ4 2024: 43 institutionsQ1 2025: 37 institutionsQ2 2025: 32 institutionsQ3 2025: 37 institutionsQ4 2025: 41 institutionsQ1 2026: 33 institutionsQ2 2026: 36 institutions
Value heldQ2 2023: $145.8M
Q1 2021: $1.24BQ2 2021: $1.34BQ3 2021: $1.61BQ4 2021: $1.50BQ1 2022: $909.5MQ2 2022: $777.4MQ3 2022: $376.2MQ4 2022: $319.3MQ1 2023: $297.8MQ2 2023: $145.8MQ3 2023: $130.5MQ4 2023: $33.2MQ1 2024: $57.8MQ2 2024: $24.1MQ3 2024: $19.6MQ4 2024: $31.5MQ1 2025: $12.4MQ2 2025: $13.9MQ3 2025: $27.0MQ4 2025: $37.1MQ1 2026: $12.1MQ2 2026: $51.3M
Institutions holding ATRA and their total value by quarter
QuarterHoldersValue
Q2 202636$51.3M
Q1 202633$12.1M
Q4 202541$37.1M
Q3 202537$27.0M
Q2 202532$13.9M
Q1 202537$12.4M
Q4 202443$31.5M
Q3 202435$19.6M
Q2 202448$24.1M
Q1 202482$57.8M
Q4 202391$33.2M
Q3 2023109$130.5M
Q2 2023118$145.8M
Q1 2023125$297.8M
Q4 2022139$319.3M
Q3 2022155$376.2M
Q2 2022134$777.4M
Q1 2022145$909.5M
Q4 2021139$1.50B
Q3 2021140$1.61B
Q2 2021145$1.34B
Q1 2021151$1.24B

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Atara Biotherapeutics, Inc.; share changes are against Q1 2023.

Institutions holding ATRA in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Lake Street Advisors Group, LLC11,560$19.0K0.00%00.0%Unchanged
Amalgamated Bank10,288$17.0K0.00%+95+0.9%Added
Victory Capital Management Inc10,084$16.2K0.00%−234−2.3%Reduced
Ameritas Investment Partners, Inc.6,782$10.9K0.00%00.0%Unchanged
Lazard Asset Management LLC6,776$10.0K0.00%+2,475+57.5%Added
Russell Investments Group, Ltd.5,711$9.19K0.00%00.0%Unchanged
Metropolitan Life Insurance Co5,162$8.31K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.4,315$6.95K0.00%−274−6.0%Reduced
Quantbot Technologies LP3,900$6.28K0.00%+3,900New
Signaturefd, LLC2,400$3.86K0.00%−298−11.0%Reduced
US Bancorp1,767$2.85K0.00%+706+66.5%Added
China Universal Asset Management Co., Ltd.1,284$2.07K0.00%−16−1.2%Reduced
Cutler Group LP1,500$2.00K0.00%+300+25.0%Added
Nisa Investment Advisors, LLC720$1.16K0.00%−730−50.3%Reduced
Cary Street Partner Investment Advisory LLC66$1060.00%+66New
Daiwa Securities Group Inc.290$00.00%−15,377−98.1%Reduced
CWM, LLC133$00.00%00.0%Unchanged
IFP Advisors, Inc2,400––00.0%Unchanged
Baker Bros. Advisors LP0$00.00%−744,186−100.0%Sold out
Rafferty Asset Management, LLC0$00.00%−710,258−100.0%Sold out
M28 Capital Management LP0$00.00%−439,300−100.0%Sold out
Swiss National Bank0$00.00%−174,000−100.0%Sold out
Candriam Luxembourg S.C.A.0$00.00%−146,159−100.0%Sold out
Profund Advisors LLC0$00.00%−104,484−100.0%Sold out
Credit Suisse AG0$00.00%−95,056−100.0%Sold out
Walleye Capital LLC0$00.00%−88,393−100.0%Sold out
Thrivent Financial for Lutherans0$00.00%−73,642−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−70,518−100.0%Sold out
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.0$00.00%−61,994−100.0%Sold out
Shell Asset Management Co0$00.00%−53,824−100.0%Sold out
SG Americas Securities, LLC0$00.00%−34,707−100.0%Sold out
Janus Henderson Group PLC0$00.00%−32,828−100.0%Sold out
E Fund Management Co., Ltd.0$00.00%−32,062−100.0%Sold out
Virtus ETF Advisers LLC0$00.00%−26,074−100.0%Sold out
Teacher Retirement System of Texas0$00.00%−24,844−100.0%Sold out
Mirae Asset Global Investments Co., Ltd.0$00.00%−23,763−100.0%Sold out
Arizona State Retirement System0$00.00%−23,367−100.0%Sold out
Denali Advisors LLC0$00.00%−13,100−100.0%Sold out
Zurcher Kantonalbank (Zurich Cantonalbank)0$00.00%−11,676−100.0%Sold out
Captrust Financial Advisors0$00.00%−10,306−100.0%Sold out
Amundi0$00.00%−7,339−100.0%Sold out
Itau Unibanco Holding S.A.0$00.00%−4,280−100.0%Sold out
Great West Life Assurance Co0$00.00%−3,275−100.0%Sold out
Parallel Advisors, LLC0$00.00%−629−100.0%Sold out
Advisory Services Network, LLC0$00.00%−147−100.0%Sold out
Lindbrook Capital, LLC0$00.00%−119−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−49−100.0%Sold out